CN218525778U - Connector assembly - Google Patents

Abstract

The utility model discloses a connector assembly, include: an electrical connector including a base and a mating portion projecting forwardly relative to the base; at least one cable connected to the electric connector; the metal shell is sleeved outside the base part, the front end of the metal shell forwards exceeds the base part, and an accommodating space is formed between the metal shell and the butt joint part; the injection molding piece is coated outside the metal shell and the cable, and the front end of the injection molding piece does not exceed the front end of the metal shell forwards; an insulating part, the cladding is outside injection molding, cable and butt joint portion, and the front end of insulating part is located the place ahead of injection molding, and the insulating part is filled in accommodation space, so make to have better adaptation between insulating part and the electric connector to and the connector subassembly has good compressive property.

Description

Connector assembly

[ technical field ] A

The present invention relates to a connector assembly, and more particularly to a connector assembly having good sealing performance and pressure resistance.

[ background of the invention ]

There is a connector assembly comprising: the electric connector comprises an insulating body, a conductive terminal arranged on the insulating body and a shielding shell assembled outside the insulating body; a cable welded to the conductive terminal; the front part of the metal shell is sleeved outside the rear part of the shielding shell and welded outside the rear part of the shielding shell, and an accommodating space is arranged between the front part of the metal shell and the outer surface of the shielding shell; the inner die is coated outside the cable, the metal shell and the electric connector and is filled in the accommodating space; and the outer die is coated outside the inner die, the metal shell and the electric connector, and the front end of the outer die is positioned in front of the front end of the inner die.

However, since the accommodating space between the metal shell and the shielding shell is filled by the inner mold, the outer mold covers the electrical connector and cannot form an embedded structure, and when the electrical connector is subjected to an external force forming a certain angle with the front-back direction, the sealing effect between the outer mold and the electrical connector is poor.

Therefore, there is a need for a new connector assembly that overcomes the above-mentioned deficiencies.

[ Utility model ] A method for manufacturing a semiconductor device

An object of the present invention is to provide a connector assembly with good sealing performance and compressive strength.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a connector assembly, comprising: an electrical connector including a base and a mating portion projecting forwardly of the base; at least one cable electrically connected to the electrical connector; the metal shell is sleeved outside the base, the front end of the metal shell forwards exceeds the base, and an accommodating space is formed between the front end of the metal shell and the outer surface of the butting part; the injection molding piece is coated outside the metal shell and the cable, and the front end of the injection molding piece does not exceed the front end of the metal shell forwards; the insulation piece is coated outside the injection molding piece, the cable and the butt joint part, the front end of the insulation piece is located in front of the injection molding piece, the insulation piece and the injection molding piece are made of different insulation materials, and the insulation piece is filled in the accommodating space.

Further, the injection-molded part extends forward from the rear end of the base part to be wrapped and extends forward more than half of the length of the base part in the front-rear direction.

Further, the front end of the injection molding piece is located behind the accommodating space.

Furthermore, the metal shell is formed by curling a metal plate and comprises a top plate, a bottom plate and two side plates for connecting the top plate and the bottom plate, wherein the top plate and the bottom plate are in a flat plate shape, the side plates are in an arc shape, and the thickness of the injection molding part which correspondingly covers the top plate and the bottom plate is larger than the thickness of the metal plate for manufacturing the metal shell.

Furthermore, the electric connector comprises an insulating body, at least one conductive terminal arranged on the insulating body, and a shielding shell coated outside the insulating body, wherein the shielding shell comprises a rear housing and a front housing, the rear housing is integrally formed, the size of the front housing is reduced relative to that of the rear housing, the rear housing is arranged on the base, the front housing is arranged on the butt joint part, and the conductive terminal is exposed out of the insulating body backwards and is electrically connected with the cable.

Furthermore, the front housing comprises an inclined guide part connected with the rear housing and a straight cylinder structure formed by extending the inclined guide part forwards, and the straight cylinder structure, the inclined guide part and the metal shell are arranged together in an enclosing manner to form the accommodating space.

Furthermore, the metal shell is provided with at least one convex part which is formed by inward stamping from the outer surface of the metal shell and is convexly arranged relative to the inner surface of the metal shell, and the convex parts are positioned in front of the rear cover shell and are mutually matched so as to limit the metal shell to move backwards.

Further, the front end of the injection molding piece is located behind the convex portion.

Further, the connector subassembly includes a plurality of the cable, and is a plurality of the cable includes two first cables, electric connector includes an insulator, locates two first terminals of insulator and cladding in a shielding shell outside the insulator, insulator's rear side is equipped with and exposes backward a supporting part of shielding shell, first terminal has a first weld part, two first weld part is located the left and right sides of supporting part just upwards expose in the supporting part, first weld part with first cable passes through the solder welding, the metal casing is equipped with two and steps down the groove and is located two a rib between the groove of stepping down, two the groove of stepping down corresponds two in the upper and lower direction first weld part and two first cable welded position, the front end of injection molding is located the groove of stepping down, and imbeds two the groove of stepping down and cladding the supporting part, the preceding rib is buried underground in the injection molding.

Further, the metal shell includes a roof, a bottom plate and connects the roof with two curb plates of bottom plate, the roof with the bottom plate is flat, the curb plate is the arc, the groove of stepping down is in the roof with one of them the curb plate extends, the rib is located the roof.

Furthermore, the metal shell is provided with a barrel part, a bunching part positioned behind the barrel part and at least one connecting part for connecting the barrel part and the bunching part, the receding groove and the reinforcing part are arranged on the barrel part, and the bunching part surrounds and restrains the cable.

Further, the avoiding groove is a through hole surrounded by a metal material.

Further, the first welding part does not exceed the rear edge of the abdicating groove backwards in the front-rear direction, and the first welding part does not exceed the front edge of the abdicating groove forwards in the front-rear direction.

Furthermore, the electric connector further comprises a second terminal arranged on the insulating body, the second terminal is provided with a second welding part, the cables further comprise a second cable welded with the second welding part, the two first welding parts are positioned on the left side and the right side of the second welding part, and the cross-sectional area of the second cable is smaller than that of the first cable.

Furthermore, the position of the second cable welded to the second welding part is vertically arranged corresponding to the reinforcing part.

Furthermore, the insulation body is provided with two limiting parts extending upwards from the left side and the right side of the supporting part, the metal shell is provided with a first shielding part and two second shielding parts extending upwards from the left side and the right side of the first shielding part in a bending manner, the first shielding part is positioned on the lower side of the supporting part in the vertical direction, the two second shielding parts are respectively positioned on the outer sides of the two limiting parts in the horizontal direction, the upper surfaces of the second shielding parts in the vertical direction are not higher than the upper surfaces of the limiting parts, and the limiting parts separate the first welding part and the adjacent second shielding parts in the horizontal direction.

Further, the insulation part has a hardness less than that of the injection-molded part.

Compared with the prior art, the utility model discloses the connector assembly has following beneficial effect:

the injection molding piece is coated outside the electric connector, the metal shell and the cable, so that the compression resistance of the connector assembly is improved; and because the insulating part is coated outside the metal shell and filled in the gap, the insulating part and the electric connector form an embedded structure, and the sealing effect of the insulating part and the electric connector is improved.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of a connector assembly according to a first embodiment of the present invention;

fig. 2 is an exploded perspective view of the electrical connector of fig. 1;

FIG. 3 is an exploded perspective view from another perspective of the connector assembly of FIG. 1 with a cable routed to an electrical connector;

FIG. 4 is a schematic view of the metal shell of FIG. 1;

fig. 5 is a perspective assembly view of the electrical connector of fig. 1 and a metal shell;

FIG. 6 is a perspective combination view of the connector assembly of the first embodiment of the present invention with the injection molded part and the insulator removed;

FIG. 7 is a side view of FIG. 6;

fig. 8 is a top view of the first embodiment of the connector assembly of the present invention in combination;

FIG. 9 isbase:Sub>A cross-sectional view at A-A of FIG. 8;

FIG. 10 is a cross-sectional view at B-B of FIG. 8;

FIG. 11 is a cross-sectional view of FIG. 8 at C-C and showing only the electrical connector and the metal shell;

fig. 12 is an exploded perspective view of a connector assembly according to a second embodiment of the present invention;

FIG. 13 is a schematic view of the metal shell of FIG. 12;

FIG. 14 is a perspective view of the assembled concealed injection molded part and insulator part of the connector assembly of FIG. 12;

FIG. 15 is a top view of FIG. 14;

FIG. 16 is a side view of FIG. 14;

FIG. 17 is a top view of the connector assembly of FIG. 12 assembled;

FIG. 18 is a cross-sectional view of FIG. 17 at D-D;

fig. 19 is a cross-sectional view at E-E of fig. 17.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

[ detailed description ] embodiments

For better understanding of the objects, structures, features, and functions of the present invention, reference should now be made to the drawings and detailed description of the invention.

As shown in fig. 1 to 11, in order to illustrate the first embodiment of the connector assembly 100 of the present invention, the connector assembly 100 defines a front-back direction (the plugging direction of the connector assembly 100) and a left-right direction and a top-bottom direction perpendicular to the front-back direction. For convenience of understanding of the drawings, a forward direction in the front-back direction is a positive direction of an X axis, a rightward direction in the left-right direction is a positive direction of a Y axis, and an upward direction in the up-down direction is a positive direction of a Z axis.

As shown in fig. 1 to 11, a connector assembly 100 of the present invention includes: the cable connector comprises an electric connector 200, a metal shell 6 sleeved outside the electric connector 200, a plurality of cables electrically connected with the electric connector 200, an injection molding member 300 and an insulating member 400.

As shown in fig. 2, 3 and 9, the electrical connector 200 has a mating portion 201 and a base portion 202 connected to the rear of the mating portion 201 in the front-rear direction, and the base portion 202 is enlarged in size relative to the mating portion 201 on a plane defined by the vertical direction and the left-right direction, that is, on the plane defined by the vertical direction and the left-right direction, the cross-sectional area of the base portion 202 is larger than that of the mating portion 201. The electrical connector 200 has an insulative housing 3, a plurality of conductive terminals including two first terminals 1 and a second terminal 2 fixed to the insulative housing 3, a shielding shell 4 sleeved outside the insulative housing 3, and a shielding plate 5 fixed to the insulative housing 3. Of course, in other embodiments, the number of the first terminals 1 and the second terminals 2 may be multiple.

As shown in fig. 1, 2 and 10, in the present embodiment, the plurality of wires includes two first wires 7 and a second wire 8, the two first wires 7 correspond to the two first terminals 1 one by one and are welded to the first terminals 1, the second wire 8 corresponds to the second terminal 2 and is welded to the second terminal 2, and the cross-sectional area of the second wire 8 is smaller than that of the first wire 7 on a plane defined by the up-down direction and the left-right direction, in other words, the first wire 7 is thicker than the second wire 8. In other embodiments, the electrical connector 200 further includes a built-in circuit board (not shown) soldered to the first terminal 1 and the second terminal 2, the first cable 7 and the second cable 8 are soldered to pads (not shown) on the built-in circuit board, the first cable 7 is electrically connected to the first terminal 1 through the built-in circuit board, and the second cable 8 is electrically connected to the second terminal 2 through the built-in circuit board.

As shown in fig. 1 and 9, the injection-molded part 300 is formed by injection molding and covers the metal shell 6, the electrical connector 200 and the cable. The insulating member 400 is wrapped around the electrical connector 200, the metal shell 6, the injection-molded member 300, and the cable.

As shown in fig. 2, 5 and 6, both of the first terminals 1 are power supply terminals, and one of the first terminals 1 is a positive terminal 11, and the other first terminal 1 is a negative terminal 12. Each of the first terminals 1 has a first butting portion 13, a first fixing portion 14 and a first soldering portion 15, and in other embodiments, the first soldering portion 15 may also be the pad (not shown) provided on the built-in circuit board (not shown). The first fixing portion 14 is located between the first butt portion 13 and the first welding portion 15, and is connected to the first butt portion 13 and the first welding portion 15, respectively. The first mating portion 13 is mated with a mating element (not shown, the same applies below), and the first fixing portion 14 is fixed to the insulating housing 3. The first soldering portion 15 has a first soldering surface 151, the first soldering surface 151 is an upper surface of the first soldering portion 15, and the first soldering surface 151 is soldered to the first cable 7 by a solder M. The first welding surface 151 is provided with a plurality of welding holes 152, the welding holes 152 are used for allowing the welding flux M to permeate, so that the welding force between the first welding surface 151 and the first cable 7 is increased, and the welding between the first cable 7 and the first welding surface 151 is firmer.

As shown in fig. 2, 5 and 6, the second terminal 2 is a signal terminal, and in this embodiment, the second terminal 2 is a detection signal terminal. The second terminal 2 has a second mating portion 21, a second fixing portion 22, and a second soldering portion 23, and in another embodiment, the second soldering portion 23 may be the pad (not shown) provided on the built-in circuit board (not shown). The second fixing portion 22 is located between the second docking portion 21 and the second welding portion 23, and is connected to the second docking portion 21 and the second welding portion 23, respectively. The second docking portion 21 is docked with the docking element, and the second fixing portion 22 is fixed to the insulating housing 3. The second welding portion 23 is arranged in a row with the two first welding portions 15 in the left-right direction, and the second welding portion 23 is located between the two first welding portions 15. The first welded part 15 on the right side of the second welded part 23 is the first welded part 15 of the positive electrode terminal 11, and the first welded part 15 on the left side of the second welded part 23 is the first welded part 15 of the negative electrode terminal 12. The second soldering portion 23 has a second soldering surface 231, the second soldering surface 231 is the upper surface of the second soldering portion 23, and the second soldering surface 231 is soldered to the second cable 8 by the solder M. Be equipped with a plurality of welding holes 152 on the second face of weld 231, welding holes 152 supplies solder M infiltrates, and then increases the second face of weld 231 with welding power between the second cable 8 makes the second cable 8 with welding between the second face of weld 231 is more firm.

As shown in fig. 2 and 5, the insulating body 3 has a main body portion 31, the first terminal 1 is fixed to the main body portion 31 by the first fixing portion 14, the second terminal 2 is fixed to the main body portion 31 by the second fixing portion 22, and the first welding portion 15 and the second welding portion 23 both extend rearward out of the main body portion 31. A stopper 32 extends rearward from a rear end surface of the body 31, and the stopper 32 is located forward of the first welding portion 15 and the second welding portion 23 in the front-rear direction.

As shown in fig. 5 and 6, the insulating body 3 further includes two limiting portions 33 and a supporting portion 34 extending from the rear end surface of the main body portion 31 to the rear, and the two limiting portions 33 are respectively located on the left and right sides of the supporting portion 34 and connected to the supporting portion 34. First welding part 15 with second welding part 23 is all spacing in two between the spacing portion 33, just spacing portion 33 is close to mutual welded first welding part 15 with one side of first cable 7 is equipped with a first inclined plane 331, first inclined plane 331 certainly the upper surface of spacing portion 33 is downward and is close to mutual welded first welding part 15 with the incline of one side of first cable 7 extends, first inclined plane 331 is used for stepping down mutual welded first welding part 15 with first cable 7, so first inclined plane 331 can increase first welding part 15 with welding space between the first cable 7 makes things convenient for the welding.

As shown in fig. 5 and 6, the support portion 34 is located below the stopper portion 32 in the vertical direction, and the first welding portion 15 and the second welding portion 23 are located above the support portion 34 and abut against the upper surface of the support portion 34. Two convex strips 341 (certainly, the number of the convex strips 341 may be three, four, etc. in other embodiments) extend upward from the upper surface of the supporting portion 34, and the height of the convex strips 341 is lower than that of the main body portion 31 along the up-down direction. In the left-right direction, the two protruding strips 341 are located between the two limiting portions 33, and each protruding strip 341 is located between the adjacent first welding portion 15 and the second welding portion 23, so as to prevent the first welding portion 15 and the second welding portion 23 from being connected by the solder M to form a short circuit. That is, the second welding portion 23 is limited between two convex strips 341, and any one of the first welding portions 15 is limited between one of the limiting portions 33 adjacent to the first welding portion and one of the convex strips 341. Each the sand grip 341 is close to one side of second weld part 23 is equipped with a second inclined plane 342, second inclined plane 342 certainly the upper surface of sand grip 341 is downward and towards being close to mutual welding second weld part 23 with the slope of one side of second cable 8 extends, second inclined plane 342 is used for stepping down mutual welding second weld part 23 with second cable 8, so second inclined plane 342 can increase second weld part 23 with welding space between the second cable 8 makes things convenient for the welding.

As shown in fig. 2, 3 and 5, the shielding case 4 covers the insulating body 3, the shielding case 4 includes a rear case 41 and a front case 42 formed by integrally molding the rear case 41 and extending forward, the front case 42 is reduced in size relative to the rear case 41 on a plane defined by a vertical direction and a horizontal direction, and the front case 42 includes a lead-inclined portion 421 integrally connected to the rear case 41 and a straight tube structure 422 formed by extending the lead-inclined portion 421 forward. The rear cover 41 covers the main body 31, and the front cover 42 covers a front portion of the insulating body 3. The stopper portion 32 protrudes rearward beyond the shield shell 4 in the front-rear direction, so that the stopper portion 32 can block the first soldering portion 15 and the first cable 7, which are soldered to each other, and the second soldering portion 23 and the second cable 8, which are soldered to each other, in the front-rear direction, so that when the connector assembly 100 is subjected to a high voltage (electrical test), an electric spark is prevented from being generated at the first soldering portion 15 and the second cable 7, which are soldered to each other, due to a too close distance between the shield shell 4 and the first soldering portion 15 and the second cable 8, and an electric spark is prevented from being generated at the second soldering portion 23 and the second cable 8, which are soldered to each other, due to a too close distance between the shield shell 4 and the second soldering portion 8.

As shown in fig. 2, 5 and 10, the shielding plate 5 is clamped and fixed by the negative terminal 12, the shielding plate 5 has a solder leg 51 extending backward out of the main body 31, and the solder leg 51 is located above the supporting portion 34 and located right below the receding groove 61. The fillet 51 is welded to the first welding portion 15 of the negative electrode terminal 12 and the corresponding first cable 7. That is, the fillet 51 is located above the first welding surface 151 of one first welding portion 15 and is welded to the first welding surface 151 and the corresponding first cable 7, and this first welding portion 15 is the first welding portion 15 of the negative terminal 12. In other words, the solder tail 51 is electrically connected to the first soldering portion 15 and the first cable 7 which are located on the left side and soldered to each other.

As shown in fig. 3 and fig. 11, the metal shell 6 is sleeved outside the base 202, the metal shell 6 protrudes forward out of the base 202, and an accommodating space S1 is formed between the metal shell 6 and the outer surface of the abutting portion 201, and specifically, the metal shell 6, the inclined guiding portion 421 of the shielding shell 4 and the straight tube structure 422 are surrounded to form the accommodating space S1. The metal shell 6 is formed by curling a metal plate, the metal shell 6 and the shielding shell 4 are fixed by welding, specifically, the metal shell 6 and the rear housing 41 of the shielding shell 4 are fixed by laser welding at a position corresponding to the base 202, and in other embodiments, the metal shell 6 may be formed by cutting a pipe.

As shown in fig. 4, 5 and 10, the metal shell 6 includes a cylindrical portion 6a, the cylindrical portion 6a includes a top plate 6a1, a bottom plate 6a2 and two side plates 6a3 connecting the top plate 6a1 and the bottom plate 6a2, the top plate 6a1 and the bottom plate 6a2 are opposite to each other in the vertical direction, the two side plates 6a3 are opposite to each other in the left-right direction, the bottom plate 6a2 is located below the supporting portion 34, the side plates 6a3 are curved to have an arc-shaped structure, the two side plates 6a3 are located on the left and right sides of the supporting portion 34, each side plate 6a3 is curved to form a receiving space S2, and the first welding portion 15 extends into the receiving space S2 in the left-right direction.

As shown in fig. 3, fig. 4, fig. 5, fig. 6 and fig. 10, the rear end of metal shell 6 is equipped with two abdicating grooves 61 and is located two a reinforcement 62 between abdicating grooves 61, abdicating grooves 61 with reinforcement 62 all locates section of thick bamboo 6a, each abdicating groove 61 sets up roof 6a1 rather than one of them curb plate 6a3, just abdicating groove 61 runs through behind metal shell 6, abdicating groove 61 is equipped with forward by roof 6a1 extends to a front edge 61a of curb plate 6a3, abdicating groove 61 certainly roof 6a1 to curb plate 6a3 downwardly extending just does not exceed downwards the upper surface of first weld part 15 (i.e. first weld face 151), has guaranteed the intensity of metal shell 6 itself, helps to maintain the stable structure of connector assembly 100. And the receding groove 61 and the reinforcing part 62 are both located above the supporting part 34. The stopper 32 is protruded backward beyond the front edge 61a of each of the receding grooves 61 in the front-rear direction, and the stopper 32 is protruded backward beyond the front edge 61a in the front-rear direction, so that not only is it avoided that the solder M attached to the first soldering portion 15 is protruded forward to be conducted with the metal shell 6 to cause a short circuit, but also it is possible to avoid that an electric spark is generated in the vicinity of the metal shell 6 due to a too close distance in the front-rear direction from the first soldering portion 15 and the first cable 7 which are soldered to each other when the connector assembly 100 is subjected to a high voltage (electrical test).

As shown in fig. 4, 5 and 6, each of the abdicating grooves 61 provides an abduction for one of the first cable 7 and the first welding part 15 which are welded to each other. Each of the receding grooves 61 further has an upper opening 611 and a side opening 612 communicating with the upper opening 611, wherein the upper opening 611 is located above the first welding portion 15 and the first cable 7 which are welded to each other. The side opening 612 is arc-shaped, and the side opening 612 is located at one side where the first welding part 15 and the first cable 7 are away from the second welding part 23 which are welded to each other.

As shown in fig. 6 and 10, the reinforcing portion 62 is located directly above the second welding portion 23 and the second cable 8 which are welded to each other, and the reinforcing portion 62 partially overlaps the second cable 8 and the second welding portion 23 which are welded to each other in the vertical direction, that is, the reinforcing portion 62 is not completely shielded above the portion where both the second cable 8 and the second welding portion 23 are welded, in other words, the reinforcing portion 62 is shielded only in the front portion of the portion where both the second cable 8 and the second welding portion 23 are welded, and the reinforcing portion 62 is not provided directly above the rear portion of the portion where both the second cable 8 and the second welding portion 23 are welded. The reinforcing portion 62 is located between the two convex strips 341 in the left-right direction as viewed from above.

As shown in fig. 9 and 10, there is a first gap D1 between the reinforcing part 62 and the first welding part 15 and the first cable 7 welded to each other in the left-right direction, and there is a second gap D2 between the reinforcing part 62 and the second welding part 23 and the second cable 8 welded to each other in the up-down direction, the first gap D1 is smaller than the second gap D2 (of course, the first gap D1 may be equal to or larger than the second gap D2 in other embodiments), and it is only necessary to ensure that when the connector assembly 100 passes a high pressure (electrical test), the first gap D1 makes a sufficient distance between the reinforcing part 62 and the first welding part 15 and the first cable 7 welded to each other, and the second gap D2 makes a sufficient distance between the reinforcing part 62 and the second welding part 23 and the second cable 8 welded to each other, so as to avoid spark generation in the vicinity thereof.

As shown in fig. 4, 5 and 6, the metal shell 6 is provided with a first shielding portion 63 and two second shielding portions 64 bent and extended upward from the left and right sides of the first shielding portion 63, the first shielding portion 63 is located on the side of the supporting portion 34 away from the reinforcing portion 62, that is, the first shielding portion 63 covers the bottom of the supporting portion 34, and therefore, the first shielding portion 63 is a portion of the bottom plate 6a2 correspondingly located below the supporting portion 34. The two second shielding portions 64 are respectively located on one side of the two limiting portions 33 away from the first welding portion 15, and the limiting portions 33 separate the first welding portion 15 and the adjacent second shielding portions 64 in the left-right direction, that is, the two second shielding portions 64 are respectively located on the outer sides of the limiting portions 33, so that the second shielding portions 64 are the portions of the side plates 6a3 corresponding to the outer sides of the limiting portions 33. In the vertical direction, the upper surface of the second shielding portion 64 is lower than the upper surface of the limiting portion 33, so that when the first soldering portion 15 and the first cable 7 are soldered by the solder M, the first soldering portion 15 is prevented from being conducted with the metal shell 6 by the overflow of the solder M, thereby causing a short circuit. In the front-rear direction, the rear end of the support portion 34 protrudes rearward beyond the rear end of the first shielding portion 63, and the rear end of the stopper portion 33 protrudes rearward beyond the rear end of the second shielding portion 64.

As shown in fig. 3, 4, 5, and 11, the metal shell 6 is provided with a plurality of protrusions 65 at a portion protruding forward beyond the base 202, the protrusions 65 being punched inward from the outer surface of the metal shell 6 and protruding relative to the inner surface thereof, the protrusions 65 being located in front of the rear cover 41. When the metal shell 6 is assembled to the electrical connector 200, the protrusion 65 and the inclined guiding portion 421 of the front cover 42 of the shielding shell 4 are engaged with each other, so as to limit the metal shell 6 from being separated from the shielding shell 4 backwards. In this embodiment, the protrusions 65 are provided on the portion of the cylinder portion 6a protruding forward beyond the base portion 202, two protrusions 65 are provided on each of the top plate 6a1 and the bottom plate 6a2, in other embodiments, the top plate 6a1 and the bottom plate 6a2 may be provided with different numbers of protrusions 65, or only one of the top plate 6a1 and the bottom plate 6a2 may be provided with an appropriate number of protrusions 65, or the protrusions 65 may be provided on the side plate 6a3, and the present invention is not limited to the positions and the number of the protrusions 65 on the cylinder portion 6 a.

As shown in fig. 1, 6 and 10, the two first cables 7 are respectively located at the left and right sides of the second cable 8 in the left-right direction, and the first cables 7 are thicker than the second cable 8. Each of the second cables 8 has a first core 71 and a first insulating layer 72 covering the first core 71. The first wire core 71 extends forward beyond the first insulating layer 72, and is located above the first soldering portion 15 and soldered to the first soldering portion 15 by the solder M, and the first insulating layer 72 is located behind the supporting portion 34.

As shown in fig. 6, 9 and 10, the second cable 8 has a second core 81 and a second insulating layer 82 covering the second core 81, and the second core 81 extends forward out of the second insulating layer 82 and is located above the second soldering portion 23 and soldered to the second soldering portion 23 by the solder M. On a plane defined by the up-down direction and the left-right direction, the cross-sectional area of the second core 81 is smaller than that of the first core 71, that is, the first core 71 is thicker than the second core 81, and the second insulating layer 82 is located behind the support portion 34. In the up-down direction, the height of the second core 81 and the second welded portion 23 that are welded to each other is lower than the height of the first core 71 and the first welded portion 15 that are welded to each other; the second insulating layer 82 is located behind the support portion 34.

As shown in fig. 1, the connector assembly 100 further includes an outer insulating layer 9, and the outer insulating layer 9 is wrapped around the first insulating layer 72 of the two first cables 7 and the second insulating layer 82 of the second cable 8, so as to fix the two first cables 7 and the second cable 8.

As shown in fig. 1, 9 and 10, in the present embodiment, the injection molded part 300 is wrapped around the metal shell 6 and the first and second cables 7 and 8, and the injection molded part 300 extends forward from the rear end of the base 202 and covers the rear end and extends forward over half of the length of the base 202 in the front-rear direction. The front end of the injection molding 300 does not extend forward beyond the front end of the metal shell 6, the injection molding 300 is located behind the accommodation space S1, the front end of the injection molding 300 is not covered to the front end of the metal shell 6 and does not fill the accommodation space S1, the front end of the injection molding 300 is located behind the convex portion 65 of the metal shell 6, the length of the metal shell 6 in the front-rear direction is more than half covered by the injection molding 300, and the thickness of the injection molding 300 covering the top plate 6a1 and the bottom plate 6a2 is larger than the plate thickness of the metal plate material forming the metal shell 6. The rear end of the injection molding 300 is coated outside the outer insulating layer 9, the injection molding 300 is embedded into the two receding grooves 61, the reinforcing part 62 is embedded in the injection molding 300, the binding force between the metal shell 6 and the injection molding 300 is enhanced, and the overall compression resistance of the connector assembly 100 is improved. The injection molding 300 further covers and fixes the first welding part 15 and the first cable 7 which are welded to each other, and the second welding part 23 and the second cable 8 which are welded to each other, so that the injection molding 300 can be filled with plastic between the first welding part 15 and the first cable 7 which are welded to each other, and between the second welding part 23 and the second cable 8 which are welded to each other, thereby facilitating the subsequent molding of the insulation part 400.

As shown in fig. 1, 9 and 10, the insulating member 400 covers the injection molded member 300, the front end of the insulating member 400 is located in front of the front end of the injection molded member 300 and fills the accommodating space S1, the rear end of the insulating member 400 covers the outer insulating layer 9, and the rear end of the insulating member 400 extends rearward beyond the rear end of the injection molded member 300. The material of the insulation piece 400 is different from that of the injection molding piece 300 and is made of an insulation material, in this embodiment, the material of the insulation piece 400 is softer than that of the injection molding piece 300, so that the part of the insulation piece 400 which protrudes backwards beyond the injection molding piece 300 and is coated on the outer insulation layer 9 can be used as a stress releaser when the cable is bent and pulled to generate stress. Of course, in other embodiments, the material of the insulating member 400 and the material of the injection molding member 300 may be the same, or the material of the insulating member 400 may be harder than the material of the injection molding member 300.

As shown in fig. 12 to fig. 19, for the second embodiment of the connector assembly of the present invention, the same parts are not repeated, and refer to the first embodiment, and the second embodiment is different from the first embodiment only in that: the metal shell 6 has a binding portion 6b located behind the cylindrical portion 6a and two connecting portions 6c connecting the cylindrical portion 6a and the binding portion 6b, one of the two connecting portions 6c is connected to the top plate 6a1, the other is connected to the bottom plate 6a2, and the binding portion 6b surrounds and binds the first cable 7 and the second cable 8; the avoiding grooves 61 are through holes surrounded by metal materials, each of the avoiding grooves 61 is provided with a front edge 61a and a rear edge 61b which are oppositely arranged in the front-rear direction, the front edge 61a of the avoiding groove 61 is not exceeded by the first welding part 15 in the front-rear direction, and the rear edge 61b of the avoiding groove 61 is not exceeded by the first welding part 15 in the rear direction; the reinforcing part 62 may be completely overlapped with the second cable 8 and the second welding part 23 welded to each other in the vertical direction, that is, a portion where both the second cable 8 and the second welding part 23 are welded may be completely shielded by the reinforcing part 62 in the vertical direction; the injection molding piece 300 is located behind the accommodating space S1, the front end of the injection molding piece 300 is not coated to the front end of the metal shell 6, and only fills the inside of the metal shell 6, the relief groove 61, the connecting portion 6c, the wire binding portion 6b and the outer insulating layer 9, but does not fill the accommodating space S1, and the insulating piece 400 is coated outside the metal shell 6 and filled into the accommodating space S1.

To sum up, the utility model discloses the connector assembly has following beneficial effect:

(1) The metal shell 6 is sleeved on the base 202 and protrudes forwards out of the base 202, an accommodating space S1 is formed between the outer surfaces of the butt joint portions 201, the insulation piece 400 is formed outside the injection molding piece 300 in a coating mode and filled into the accommodating space S1 to form an embedded structure, therefore, the bonding force between the insulation piece 400 and the electric connector 200 is increased, the situation that when the connector assembly 100 is pulled, the insulation piece 400 and the outer surfaces of the electric connector 200 are separated from each other to form a large gap is avoided, and the sealing effect of the connector assembly 100 is improved.

(2) The metal shell 6 is respectively coated by the injection molding 300 and the insulating member 400, so that the compression resistance of the connector assembly 100 is improved, the bonding force between the injection molding 300 and the metal shell 6 is increased, and further the injection molding 300 and the metal shell 6 are prevented from being separated from each other when the connector assembly 100 is pulled; the injection molding 300 extends forward from the rear end of the base 202 and covers the base 202, and extends forward to exceed half of the length of the base 202 in the front-rear direction, so that the bonding force between the injection molding 300 and the electrical connector 200 is increased, and the injection molding 300 and the electrical connector 200 are prevented from being separated from each other when the connector assembly 100 is pulled.

(3) The upper opening 611 is located the welded first welding portion 15 and the top of first cable 7, the side opening 612 is located the welded each other first welding portion 15 with first cable 7 is kept away from the one side of second welding portion 23, so the upper opening 611 can give way the welded each other first welding portion 15 and first cable 7 in the up and down direction, the side opening 612 can give way the welded each other first welding portion 15 and first cable 7 in the left and right direction, and then avoid the metal shell 6 and the welded each other first welding portion 15 and first cable 7 distance too close, and when passing through high voltage (electrical test), produce the electric spark near here, and then influence the electrical property of connector subassembly 100.

(4) The first shielding portion 63 is located on a side of the supporting portion 34 away from the reinforcing portion 62, so that the tensile strength of the connector assembly 100 in the up-down direction is enhanced, and the two second shielding portions 64 are respectively located on a side of the two limiting portions 33 away from the first welding portion 15, so that the tensile strength of the connector assembly 100 in the left-right direction is enhanced; and the upper surface of the second shielding portion 64 is lower than the upper surface of the limiting portion 33 in the vertical direction, so that it is avoided that the solder M overflows to cause conduction between the first soldering portion 15 and the metal shell 6 and short circuit when the first cable 7 is soldered to the first soldering portion 15 through the solder M.

(5) In the front-rear direction, the rear end of the supporting portion 34 is rearward beyond the rear end of the first shielding portion 63, and the rear end of the limiting portion 33 is rearward beyond the rear end of the second shielding portion 64, so that the first welding portion 15 or/and the second welding portion 23 are prevented from being conducted with the metal shell 6 to cause a short circuit due to the overflow of the solder M from the left and right sides or/and the rear end, and the material of the metal shell 6 can be saved.

(6) The first gap D1 is provided between the reinforcing portion 62 and the first welding portion 15 and the first cable 7 welded to each other in the left-right direction, and the second gap D2 is provided between the reinforcing portion 62 and the second welding portion 23 and the second cable 8 welded to each other in the up-down direction; this ensures that the connector assembly 100 does not cause sparks in the vicinity of the first solder 15 and the first cable 7 soldered to each other, and in the vicinity of the second solder 23 and the second cable 8 soldered to each other when the connector assembly 100 is energized with a high voltage (electrical test), enhancing the electrical performance of the connector assembly 100.

(7) The protruding strip 341 is located between the adjacent first welding portion 15 and the second welding portion 23, so the protruding strip 341 can avoid the short circuit between the first welding portion 15 and the second welding portion 23 due to the connection of the solder M, and one side of each protruding strip 341 close to the second welding portion 23 is provided with the second inclined surface 342, so the welding space between the first welding portion 15 and the first cable 7 is increased, and the welding is facilitated.

(8) Injection molding 300 cladding and fixed mutual welding first weld part 15 with first cable 7, and mutual welding second weld part 23 with second cable 8, so injection molding 300 can be fine the location mutual welding first weld part 15 with first cable 7, and mutual welding second weld part 23 with second cable 8, moreover injection molding 300 can also be at mutual welding first weld part 15 with first cable 7, and mutual welding second weld part 23 with it is full of the plastic to fill in the space between the second cable 8, thereby makes things convenient for follow-up shaping insulator 400 avoids insulator 400 produces the deformation when the shaping.

(9) The groove 61 of stepping down certainly roof 6a1 to curb plate 6a2 downwardly extending just do not surpass downwards the upper surface of first weld 15 (promptly the first face of weld 151), so, the groove 61 of stepping down is for corresponding one of mutual welded first cable 7 with first weld 15 provides the position of stepping down, has still guaranteed the intensity of metal casing 6 self helps maintaining the stable in structure of connector subassembly 100.

(10) The metal shell 6 covers the electric connector 200, the metal shell 6 is provided with two of the receding grooves 61 and one of the reinforcing parts 62 located between the two of the receding grooves 61, the two first cables 7 correspond to and are welded to the two first welding parts 15 one by one, and each of the receding grooves 61 provides a receding for one of the first cables 7 and the first welding part 15 which are welded to each other; the second cable 8 is welded to the second welding portion 23, and the reinforcing portion 62 at least partially overlaps the second cable 8 and the second welding portion 23 welded to each other when viewed in the vertical direction, and the cross-sectional area of the second cable 8 is smaller than that of the first cable 7; in this way, it is not only avoided that the metal shell 6 is too close to the first cable 7 and the first welding portion 15 which are welded to each other, when the connector assembly 100 is subjected to a high voltage (electrical test), the connector assembly 100 is caused to generate an electric spark in the vicinity of the first cable 7 and the first welding portion 15 which are welded to each other; and the tensile property of connector subassembly 100 can also be strengthened to rib 62, avoids when connector subassembly 100 is pulled, injection molding 300 produces and breaks, and because injection molding 300 cladding in the metal casing 6 is outside, injection molding 300 embedding two in the groove 61 of stepping down and rib 62 buries underground in injection molding 300, has increased like this injection molding 300 with the cohesion between the metal casing 6, and then avoids when connector subassembly 100 is pulled, injection molding 300 with metal casing 6 looks mutual separation.

(11) The metal shell 6 has a binding portion 6b located behind the cylindrical portion 6a and two connecting portions 6c connecting the cylindrical portion 6a and the binding portion 6b, and the binding portion 6b surrounds and binds the first cable 7 and the second cable 8, thereby increasing the lifting weight characteristic of the connector assembly 100 and preventing the first cable 7 and the second cable 8 from falling out of the injection-molded part 300 when the wires are lifted.

(12) Injection molding 300 imbeds in the groove 61 of stepping down, the through-hole that the groove 61 of stepping down was encircleed for the metal material on every side has increased injection molding 300 in the front and back direction with cohesion between the metal casing 6, and then avoid when connector assembly 100 receives the pulling, injection molding 300 with metal casing 6 alternate segregation.

(13) The first soldering portion 15 does not exceed the front edge 61a of the relief groove 61 forward in the front-rear direction, and the first soldering portion 15 does not exceed the rear edge 61b of the relief groove 61 backward in the front-rear direction, so that it is possible to prevent the solder M attached to the first soldering portion 15 from overflowing forward or backward to be conducted with the metal shell 6 to cause a short circuit, and to prevent an electric spark from being generated in the vicinity of the metal shell 6 where the first soldering portion 15 and the first cable 7 are soldered due to a close distance in the front-rear direction when the connector assembly 100 is subjected to a high voltage (electrical test).

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all the equivalent technical changes using the description and drawings of the present invention are included in the scope of the present invention.

Claims (17)

1. A connector assembly, comprising:

an electrical connector including a base and a mating portion projecting forwardly of the base;

at least one cable electrically connected to the electrical connector;

the metal shell is sleeved outside the base part, the front end of the metal shell forwards exceeds the base part, and an accommodating space is formed between the front end of the metal shell and the outer surface of the butt joint part;

the injection molding piece is coated outside the metal shell and the cable, and the front end of the injection molding piece does not exceed the front end of the metal shell forwards;

the insulating piece covers the injection molding piece, the cable and the butt joint part, the front end of the insulating piece is located in front of the injection molding piece, the insulating piece and the injection molding piece are made of different insulating materials, and the accommodating space is filled with the insulating piece.

2. The connector assembly of claim 1, wherein: the injection molding piece extends forwards from the rear end of the base part to cover the base part and extends forwards to exceed half of the length of the base part in the front-rear direction.

3. The connector assembly of claim 1, wherein: the front end of the injection molding piece is located behind the accommodating space.

4. The connector assembly of claim 1, wherein: the metal shell is formed by curling a metal plate and comprises a top plate, a bottom plate and two side plates for connecting the top plate and the bottom plate, wherein the top plate and the bottom plate are in flat plate shapes, the side plates are in arc shapes, and the thickness of the injection molding part which correspondingly covers the top plate and the bottom plate is larger than the thickness of the metal plate for manufacturing the metal shell.

5. The connector assembly of claim 1, wherein: the electric connector is provided with an insulating body, at least one conductive terminal arranged on the insulating body and a shielding shell coated outside the insulating body, wherein the shielding shell comprises a rear housing and a front housing, the rear housing is integrally formed with the front housing, the size of the front housing is reduced relative to that of the rear housing, the rear housing is arranged on the base, the front housing is arranged on the butt joint part, and the conductive terminal is exposed backwards out of the insulating body and is electrically connected with the cable.

6. The connector assembly of claim 5, wherein: the front cover shell comprises an inclined guide part connected with the rear cover shell and a straight cylinder structure formed by forward extension of the inclined guide part, and the straight cylinder structure, the inclined guide part and the metal shell are jointly surrounded to form the accommodating space.

7. The connector assembly of claim 5, wherein: the metal shell is provided with at least one convex part which is formed by inward stamping from the outer surface of the metal shell and is convexly arranged relative to the inner surface of the metal shell, and the convex parts are positioned in front of the rear cover shell and are matched with each other so as to limit the metal shell to move backwards.

8. The connector assembly of claim 7, wherein: the front end of the injection molding piece is located behind the convex portion.

9. The connector assembly of claim 1, wherein: the connector assembly comprises a plurality of cables, the plurality of cables comprise two first cables, the electric connector comprises an insulating body, two first terminals and a shielding shell, the two first terminals are arranged on the insulating body, the shielding shell is coated outside the insulating body, a supporting part is arranged on the rear side of the insulating body and is exposed backwards out of the shielding shell, the first terminals are provided with a first welding part and two first welding parts, the two first welding parts are arranged on the left side and the right side of the supporting part and are upwards exposed out of the supporting part, the first welding part and the first cables are welded through welding fluxes, the metal shell is provided with two abdicating grooves and a reinforcing part positioned between the abdicating grooves, the two abdicating grooves correspond to the two welding parts and the two first cable welding positions in the upper and lower directions, the front end of the injection molding part is positioned in front of the abdicating groove, the two abdicating grooves are embedded in the supporting part and are coated on the supporting part, and the reinforcing part is positioned in the injection molding part.

10. The connector assembly of claim 9, wherein: the metal shell comprises a top plate, a bottom plate and two side plates connected with the top plate and the bottom plate, the top plate and the bottom plate are flat, the side plates are arc-shaped, the abdicating groove is formed in the top plate and one of the side plates extend, and the reinforced portion is arranged on the top plate.

11. The connector assembly of claim 9, wherein: the metal shell is provided with a barrel part, a bunching part positioned behind the barrel part and at least one connecting part connected with the barrel part and the bunching part, the abdicating groove and the reinforcing part are arranged on the barrel part, and the bunching part surrounds and binds the cable.

12. The connector assembly of claim 9, wherein: the abdicating groove is a through hole surrounded by metal material.

13. The connector assembly of claim 9, wherein: the first welding part does not exceed the rear edge of the abdicating groove backwards in the front-rear direction, and the first welding part does not exceed the front edge of the abdicating groove forwards in the front-rear direction.

14. The connector assembly of claim 9, wherein: the electric connector further comprises a second terminal arranged on the insulating body, the second terminal is provided with a second welding part, the cables further comprise second cables welded with the second welding part, the two first welding parts are located on the left side and the right side of the second welding part, and the cross-sectional area of the second cable is smaller than that of the first cable.

15. The connector assembly of claim 14, wherein: the welding position of the second cable and the second welding part is vertically arranged corresponding to the reinforcing part.

16. The connector assembly of claim 9, wherein: the insulating body is provided with two limiting parts extending upwards from the left side and the right side of the supporting part, the metal shell is provided with a first shielding part and two second shielding parts extending upwards from the left side and the right side of the first shielding part in a bending mode, the first shielding part is positioned on the lower side of the supporting part in the vertical direction, the two second shielding parts are respectively positioned on the outer sides of the limiting parts in the left-right direction, the upper surface of the second shielding part is not higher than the upper surface of the limiting part in the vertical direction, and the limiting part separates the first welding part from the adjacent second shielding part in the left-right direction.

17. The connector assembly of claim 1, wherein: the insulation part has a hardness less than that of the injection-molded part.

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